中国大学MOOC: Deregulation is the process of removing legal restrictions to the free play of markets, the establishment of state owned enterprises, and the manner in which state owned enterprises operate.

4. What can we infer from the passage? A: The state should provide protection for all the old people. B: The state has to create a suitable framework to restrict the private pensions. C: The state should protect those who can’t support themselves. D: The state will play a secondary role in pensions due to more private pensions.

I’d rather ______ the piano than ______ the violin. A: play; playing B: to play; playing C: play; play D: to play; play

6. contact A: the state of talking or speaking B: the state of acting C: the state of communicating or meeting D: the state of laughing

Why does the existence of intermediate state in the 4-level laser can promote the production of laser beam? A: reach population inversion between ground state and metastable state B: reach population inversion between ground state and intermediate state C: reach population inversion between ground state and pumped state D: reach population inversion between intermediate state and metastable state

【单选题】You’d better on work time, or the boss may be angry with you. not play not to play to not play A. not play B. not to play C. to not play

‎下面（）是函数重载。‏ A: void play(int) 和void play(float) B: play( ) 和 ~play() C: void play(int) 和int play(int) D: void play( ) 和int play( )

下面（　　）是函数重载。 A: void play(int) 和void play(float) B: play( ) 和 ~play() C: void play(int) 和int play(int) D: void play( ) 和int play( )

When the initial state and the final state are fixed, "the sum of work and heat" is the state function.

She needs other children ______.() A: to play B: whom to play C: to play with D: whom to play with